Directions for Use
Instrument Preparation
• Begin with the valve button(s) open (not depressed), the plunger
positioned all the way inside the cylinder, and the collar stop locked
in place (with the tabs pushed down into the holes in the cylinder).
• Push the button(s) down and forward until you feel it/them lock.
• Create a vacuum by pulling the plunger back until the plunger arms
snap outward and catch on the wide sides of the cylinder base.
Both plunger arms must be fully extended to the sides and secured
over the edges of the cylinder. Incorrect positioning of the arms
could allow them to slip back inside the cylinder, possibly injecting
the contents of the aspirator back into the uterus. Never grasp the
aspirator by the plunger arms.
• Check for vacuum retention before each use by letting the aspirator
sit for several minutes after establishing a vacuum. Then release the
button(s). A rush of air into the aspirator should be heard, indicating
that a vacuum was retained.
• If the rush of air is not heard, displace (Ipas MVA Plus only) or remove the collar stop, withdraw the
plunger and check that the plunger O-ring is free of damage and foreign bodies, properly lubricated
and properly positioned in the groove. Also make sure the cylinder is firmly placed in the valve. Then
create a vacuum and test it again. If vacuum is still not retained, discard and use another aspirator.
• Select and have available appropriate cannula(e).
Patient Preparation
• Assess the size and position of the uterus by bimanual examination. Assess signs of infection and
address them. Assess the need for pain control medication and administer as needed.
• Insert speculum.
• Perform cervical antiseptic prep.
• Perform paracervical block, as appropriate.
• Dilate the cervix, if required.
Note: For endometrial biopsy, cervical dilatation is rarely necessary to allow passage of 3mm cannulae,
although it may be required in some instances. In some older women, particularly those who are
postmenopausal, the cervix may be sufficiently stenotic that dilatation and passage of a cannula is not
possible in the outpatient setting.
CAUTION: Cannulae must be high-level disinfected or sterile when inserted into the uterus. Observe no-
touch technique throughout the procedure: The parts of instruments that enter the uterus should not
touch objects or surfaces that are not sterile, including vaginal walls, before being inserted.
Uterine Aspiration/Evacuation Procedure
• With the speculum inserted, hold the cervix steady with a tenaculum
and gently apply traction to straighten the cervical canal.
• Introduce the cannula gently through the cervical os into the uterine
cavity. Rotating the cannula with gentle pressure often helps to ease
insertion. Move the cannula slowly into the uterine cavity until it just
touches the fundus, then withdraw it slightly.
Note: For endometrial biopsy using the Ipas 3mm cannula, determine
the uterine depth by the lines visible on the cannula. The line nearest the tip of the cannula is 2cm
from the tip, and the following lines are at 1cm intervals. After measuring the uterine size, withdraw
the cannula slightly.